M. Gunasekaran Action follows an alert by BBC Exporters in Tirupur shocked TIRUPUR: The sudden action by the British bargain retail chain, Primark, of firing three knitwear exporters of Tirupur for engaging child workers for embroidery and sequin work has come as a shock to the exporting community of the textile city. The retail chain, which has been sourcing garments from over 50 vendors here for the last two decades, acted on an alert by BBC.